Wire-coupling



(No Model.)

W. BAINBRIDGE.

WIRE COUPLING.

No. 399,465. Patented Mar. 12, 1889.

[WE/V1072 7271. B ou nb ri l g e,

21220 nay,

ATENT OFFICE.

\VILLIABII BAINBRIDGE, OF OMAHA, NEBRASKA.

WIRE-COUPLING.

SPECIFICATION forming part. of Letters Patent No. 399,465, dated March 12, 1889.

A fi ati fil d August 25, 1888. Serial 110.283,?15. (No model.)

To 6455 whom it may concern.-

Be it known that 1, WILLIAM BAINBRIDGE, a citizen of: the United States, residing at Omaha, in the county of Douglas and State of Nel aska, have invented certain new and useful Improvements in \Vireiouplin gs; and I do hereby declare the following to be a full, clear, and exact dcscriptitm oi the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to a device for coupling the ends of wires; and my object is to produce a more simple, cheap, and. etiective arrangement than those hitherto in use.

Vith these ends in view my invention consists in the peculiar features and combination of parts, more fully described hereinafter, and pointed out in the claim.

I11 the accompanying drawings, Figure 1 represents a sectional elevation of my in vention; Fig. 2, a top view, and Figs. 3, i, 5, 6, 7, 8, and f) modifications.

The reiierence-letter a denotes a sleeve having straight converging inner walls throughout its length, whereby one end of the chamber is madelarger than theopposite end. The interior chamber of the sleeve is, by preference, given a rectal'lgular form in horizontal cross-section. The top of the sleeve through line .1 :1; of Fig. 1 is oblong, while the lower opening is more nearly square.

Z) indicates a wedge having a length and width sufficientto enter the interior of the sleeve, yet leave enough room for the reception of the ends 0 and (Z of wires f. The opposite walls of the wedge are given an incli nation substantially parallel with those of the sleeve in order to secure an equal bearin throughout the length of the wedge. This construction insures a more tenacious hold of the wires and prevents them from slipping loose.

In using my invention the operator simply places the opposite ends 0 (Z of the wires f into the sleeve. The wedge is then inserted between the wires and driven home, as shown in Fig. 1. The wires f, being bent around the lower corners of the sleeve, form an acute angle and render slipping much more dil'ticult.

It sometimes becomes necessary to connect wires of a different diameter. \Vhen this occurs, a sleeve with straight andinclin'ed walls, in coml'iination with a wedge provided with corresponding grooved surfaces, may sometimes be employed, as shown in Figs. 5 and (3. In this case a recess, R, to receive the larger wire made in one side of the wedge. In Figs. 7 and S a sleeve, which oval in horizontal cross-section and provided with a slot, 0, in one side, may be resorted to. In using this modification the ends of the wires are made to overlap each other and the wedge is driven in at the side.

The modification shown in Fig. 9 shows the ends of the wires overlapping each other within a tnnigh-shaped sleeve, having a longitudinal slot, 0, torthe reception of the wires, and the wedge is driven alongside the wires in such a manner as to cover said slot o and lock the wires together.

It is evident that numerous other slight changes which might suggest themselves to a skilled mechanic could be resorted to without departing from the spirit and scope of myinvention; hence I do not limit myself to the precise constructions herein shown.

llaving thus described the preferred form and leading characteristics of my invention, what I claim as new, and desire to secure hv Letters Patent, is i The combination, in a wire-coupling, of a sleeve provided with a central chamberlz'u'ger at one end than at its opposite end, and having straight inner walls inclinedtoward each. other throughout the length of the sleeve, a wedge having an inclined exterior surface corresponding with the inner walls of the sleeve, and wires interposed between the wedge and sleeve, in the manner and for the purpose described.

In testimony whereof I atlix my signatu re in presence of two witnesses.

\VILLIAM 'BAINBRIDGE.

\Yi tr esses:

U. E. STaurrtnv, R. A. ConDINc. 

